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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2504.06550 |
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Table of Contents:
- This paper studies the supply and effects of causal rhetoric in U.S. politics. We define causal rhetoric as assigning responsibility for political outcomes, via claims of blame and merit. Training a supervised classifier, we detect causal rhetoric in over a decade of congressional tweets, finding that its supply has risen rapidly and pervasively, displacing affective messaging. We show that the production of causal rhetoric involves a trade-off between revenues and costs. First, quasi-random variation in Twitter adoption shows that blame increases small-donor revenues by expanding donor count, while merit raises average donation size. Second, fine-grained legislative data suggest that policy ownership determines relative costs: blame is cheaper for opponents, merit for proposers. Finally, causal rhetoric has downstream effects on societal outcomes, fostering protest activity and shaping polarization and institutional trust.